Can break down or build up chemicals in the body.

question 1 options:

carbohydrates

enzymes

nucleic acids

proteins

How does the author's purpose in this passage differ from an author writing about her personal struggle living with asthma?

How did the discovery of the rhesus factor affect society? o more patients died from having a transfusion with the wrong rhesus factor 0 new treatments during pregnancy could prevent harm to the developing child. o less donated blood could be used in the treatment of patients. the number of blood types was reduced by half

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16